US6086071A - Adjustable suspension system for a motor vehicle - Google Patents
Adjustable suspension system for a motor vehicle Download PDFInfo
- Publication number
- US6086071A US6086071A US09/154,379 US15437998A US6086071A US 6086071 A US6086071 A US 6086071A US 15437998 A US15437998 A US 15437998A US 6086071 A US6086071 A US 6086071A
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- United States
- Prior art keywords
- adjustable suspension
- control arm
- motor vehicle
- frame
- mode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/006—Attaching arms to sprung or unsprung part of vehicle, characterised by comprising attachment means controlled by an external actuator, e.g. a fluid or electrical motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G3/00—Resilient suspensions for a single wheel
- B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
- B60G3/20—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
Definitions
- the present invention generally relates to motor vehicles. More particularly, the present invention relates to an adjustable aerodynamic system for a motor vehicle.
- Vehicle ride height refers to a nominal vertical distance between the chassis and the ground. Modern vehicles are designed to operate at a specific ride height. The specific ride height chosen for a vehicle depends on the anticipated driving conditions. For example, sport cars are designed for on-road driving conditions and have a relatively low ride height. At the other end of the spectrum, off-road vehicles are designed to withstand rugged terrain and have a much greater ride height to provide clearance over normally encountered obstacles.
- the present invention provides an adjustable suspension for a motor vehicle having a frame and front and rear pairs of wheels.
- the adjustable suspension includes first and second control arms and a shock absorber.
- the first and second control arms both function to pivotally interconnect the wheel and the frame.
- the shock absorber has a first end fixedly interconnected to the second control arm and a second end adjustably interconnected to the frame.
- the adjustable suspension is selectively operable in a first mode to provide a first vehicle ride height and a second mode to provide a second substantially greater vehicle ride height.
- FIG. 1 is a perspective view of an adjustable suspension system constructed in accordance with the teachings of a preferred embodiment of the present invention shown operatively associated with an exemplary motor vehicle.
- FIG. 2 is a top perspective view of the front end module of the adjustable suspension system of FIG. 1.
- FIGS. 3-7 are enlarged views of portions of the front end module of FIG. 2.
- FIG. 8 is a top perspective view of the rear end module of the adjustable suspension system of FIG. 1.
- FIGS. 9-13 are enlarged views of portions of the rear end module of FIG. 8.
- an adjustable suspension system constructed in accordance with the teachings of a preferred embodiment of the present invention is generally identified with reference numeral 10.
- the adjustable suspension system 10 is shown operatively installed within an exemplary motor vehicle 12.
- the exemplary motor vehicle 12 is conventional in nature. As such, the remainder of the vehicle 12 need not be described herein.
- the adjustable suspension system 10 of the present invention may be incorporated into a wide range of motor vehicles, and that the exemplary vehicle 12 is shown for illustrative purposes only.
- the adjustable suspension system 10 of the present invention is operative in a first mode or on-road mode to provide a first vehicle ride height and a second mode or off-road mode to provide a second substantially greater vehicle ride height.
- the exemplary motor vehicle is shown to include a frame 14 and front and rear pairs of wheels 16 and 18.
- the motor vehicle 12 is a four wheel drive vehicle.
- the adjustable suspension system 10 is shown to generally include a front end module 20 operatively associated with the front pair of wheels 16 and a rear end module 22 operatively associated with the rear pair of wheels 18.
- the front end module 20 of the adjustable suspension system 10 will be described.
- the front end module 20 is a substantial mere image about a longitudinal centerline of the motor vehicle 12.
- the components of the front end module 20 associated with a right wheel of the front pair of wheels 16 is substantially identical to components associated with the left wheel.
- FIGS. 2-7 are described in detail, reference will be interchangeably made to the left and right hand sides of the front end module 20 for purposes of describing the common structure.
- Each lateral side of the front end module 20 is shown to generally include a first or upper control arm 30 and a second or lower control arm 32.
- the rear end module 20 further generally includes a shock absorber 34 associated with each of the wheels 16.
- the upper control arm 30 pivotally interconnects the associated wheel with the frame 14.
- the upper control arm 30 includes first and second segments 36 and 38 pivotally attached in a largely conventional manner to the frame 14 at spaced apart points.
- the upper control arm 30 is adapted for pivotal movement about a longitudinally extending pivot axis.
- the first and second segments 36 and 38 converge at their second ends whereat the upper control arm 30 is rotatably interconnected to the wheels in a largely conventional manner for movement about a substantially vertical axis.
- the lower control arm 32 is similarly shown to include first and second segments 40 and 42 pivotally attached to the frame 14 at spaced apart points. Again, the lower control arm 32 is adapted for pivotal movement about a longitudinally extending pivot axis. The first and second segments 40 and 42 of the lower control arm 32 converge at a common point 44 whereat they are rotatably attached to the wheel. Again, the permitted rotation is about a substantially vertical axis.
- the lower control arm 32 is substantially longer in length than the upper control arm 30.
- the adjustable suspension system 10 of the present invention adjusts the vehicle ride height in a manner which will be discussed below, the differing lengths of the upper and lower control arms 30 and 32, operate to maintain proper camber of the associated wheel.
- the specific lengths of the control arms 30 and 32 will be specific to a particular application and determinable through limited experimentation.
- the shock absorber 34 is shown to include a first end or lower end 48 fixedly interconnected to the lower control arm 32 in a largely conventional manner.
- the shock absorber 34 further includes an upper end 50 adjustably interconnected with the frame 14 of the vehicle 12 for movement between a first position when the adjustable suspension system 10 is in the first mode and a second position when the adjustable suspension system 10 is in the second mode.
- the particular manner in which the upper end 50 of the shock absorber 34 is adjustably interconnected to the frame 14 will be described immediately below.
- the front end module 20 of the adjustable suspension system 10 of the present invention is further shown to include a connector member 52 operably associated with both of the wheels 16.
- the connector member 52 is pivotally attached to the frame 14 for pivotal movement about a transversely extending pivot axis.
- a first end 54 of the connector member 52 is attached to the upper end 54 of the shock absorber 34.
- the adjustable suspension system 10 of the present invention further includes a drive unit 56 associated with each of the connector members 52.
- the drive unit 56 is shown to preferably include a linear actuator 58 interconnected to a second end 60 of the connector member 52.
- the linear actuator 58 is movable to an extended position for establishing the first mode of the adjustable suspension system 10 and a retracted position for establishing the second mode of the adjustable suspension system 10.
- the drive unit 56 when the first mode in which the lower ride height of the motor vehicle 12 is desired, the drive unit 56 is actuated to extend the linear actuator 58 and thereby rotate the connector member 52 clockwise about its pivot axis 62. In turn, the shock absorber 34 is upwardly displaced and the upper and lower control arms 30 and 32 are upwardly displaced. Conversely, when it is desired to select the second drive mode in which the vehicle drive height is significantly greater, the drive unit 56 is operated to retract the linear actuator 58 and thereby rotate the connector member 52 in a counterclockwise direction. Such rotation downwardly displaces the upper end 50 of the shock absorber 34 and in turn downwardly rotates both of the upper and lower control arms 30 and 32. This adjustment maintains the full operational range of the shock absorber 34.
- the rear end module 22 of the adjustable suspension system 10 is shown.
- the rear end module 22 of the adjustable suspension 10 is in large part identical to the front end module 20. As such, the structure and operation of the rear end module 22 need not be described in detail.
- the reference numerals applied in FIGS. 8-13 common to those used to describe the front end module 20 are used to identify substantially similar elements.
- the rear end module 22 is a substantial mere image about a longitudinal centerline.
- the adjustable suspension 10 of the present invention is operable in the first mode or on-road mode to provide a 5.75" vehicle ride height or ground clearance.
- the adjustable suspension system 10 is operative in the second mode or off-road mode to provide a 9.75" vehicle ride height or ground clearance. In both modes, the adjustable suspension system 10 maintains a range of ten inches of total vertical travel. It will be understood that these particular dimensions are susceptible to modification for any of a number of various applications.
- the adjustable suspension system 10 of the present invention is controlled by a switch (not shown) located in the passenger compartment of the motor vehicle 12.
- the switch preferably simultaneously controls four drive units 56 associated with each of the wheels.
- the front pair of wheels 16 and the rear pair of wheels 18 may be independently adjustable if desired.
- the adjustable suspension system 10 of the present invention provides for optimum roll centers, camber curves and toe curves throughout a full range of total vertical travel.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
Claims (21)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/154,379 US6086071A (en) | 1998-01-02 | 1998-09-16 | Adjustable suspension system for a motor vehicle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US7035998P | 1998-01-02 | 1998-01-02 | |
US09/154,379 US6086071A (en) | 1998-01-02 | 1998-09-16 | Adjustable suspension system for a motor vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
US6086071A true US6086071A (en) | 2000-07-11 |
Family
ID=26751056
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/154,379 Expired - Lifetime US6086071A (en) | 1998-01-02 | 1998-09-16 | Adjustable suspension system for a motor vehicle |
Country Status (1)
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US (1) | US6086071A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2366261A (en) * | 2000-08-31 | 2002-03-06 | Edmund Peter Gortowski | A variable height vehicle suspension system, with two distinct modes of operation |
US6402787B1 (en) | 2000-01-30 | 2002-06-11 | Bill J. Pope | Prosthetic hip joint having at least one sintered polycrystalline diamond compact articulation surface and substrate surface topographical features in said polycrystalline diamond compact |
US20060103083A1 (en) * | 2004-11-12 | 2006-05-18 | American Vans, Inc. | Automobile lowering methods and systems |
WO2015110965A3 (en) * | 2014-01-21 | 2015-11-26 | P-Gevs S.R.L. | Electric-propulsion vehicle |
CN110733307A (en) * | 2019-11-21 | 2020-01-31 | 沈高法 | automobile suspension with adjustable stroke range |
USRE49258E1 (en) * | 2002-04-18 | 2022-10-25 | Jaguar Land Rover Limited | Vehicle control |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2249356A (en) * | 1940-03-04 | 1941-07-15 | Harvey J Goodman | Self-loading dump truck |
US4958584A (en) * | 1987-12-02 | 1990-09-25 | Mpv, Inc. | Amphibious vehicle having an efficient water-borne operational mode |
US5530648A (en) * | 1993-05-03 | 1996-06-25 | Ford Motor Company | Apparatus and method for adjusting suspension height to reduce vehicles steering effort |
US5553836A (en) * | 1995-05-11 | 1996-09-10 | Patentials Incorporated | Adjustable suspension system |
US5671964A (en) * | 1993-12-28 | 1997-09-30 | Chrysler Corporation | Vehicle seat mounting mechanism |
-
1998
- 1998-09-16 US US09/154,379 patent/US6086071A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2249356A (en) * | 1940-03-04 | 1941-07-15 | Harvey J Goodman | Self-loading dump truck |
US4958584A (en) * | 1987-12-02 | 1990-09-25 | Mpv, Inc. | Amphibious vehicle having an efficient water-borne operational mode |
US5530648A (en) * | 1993-05-03 | 1996-06-25 | Ford Motor Company | Apparatus and method for adjusting suspension height to reduce vehicles steering effort |
US5671964A (en) * | 1993-12-28 | 1997-09-30 | Chrysler Corporation | Vehicle seat mounting mechanism |
US5553836A (en) * | 1995-05-11 | 1996-09-10 | Patentials Incorporated | Adjustable suspension system |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6402787B1 (en) | 2000-01-30 | 2002-06-11 | Bill J. Pope | Prosthetic hip joint having at least one sintered polycrystalline diamond compact articulation surface and substrate surface topographical features in said polycrystalline diamond compact |
GB2366261A (en) * | 2000-08-31 | 2002-03-06 | Edmund Peter Gortowski | A variable height vehicle suspension system, with two distinct modes of operation |
USRE49258E1 (en) * | 2002-04-18 | 2022-10-25 | Jaguar Land Rover Limited | Vehicle control |
US20060103083A1 (en) * | 2004-11-12 | 2006-05-18 | American Vans, Inc. | Automobile lowering methods and systems |
WO2015110965A3 (en) * | 2014-01-21 | 2015-11-26 | P-Gevs S.R.L. | Electric-propulsion vehicle |
US20160347159A1 (en) * | 2014-01-21 | 2016-12-01 | Interactive Fully Electrical Vehicles S.R.L. | Electric-propulsion vehicle |
US9649923B2 (en) * | 2014-01-21 | 2017-05-16 | Interactive Fully Electrical Vehicles, S.R.L. | Electric-propulsion vehicle |
CN110733307A (en) * | 2019-11-21 | 2020-01-31 | 沈高法 | automobile suspension with adjustable stroke range |
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